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https://issues.apache.org/jira/browse/SPARK-41556?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17648856#comment-17648856
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gabrywu commented on SPARK-41556:
---------------------------------
[~yumwang] [~ptoth] What do you think of it?
> input_file_positon
> ------------------
>
> Key: SPARK-41556
> URL: https://issues.apache.org/jira/browse/SPARK-41556
> Project: Spark
> Issue Type: New Feature
> Components: SQL
> Affects Versions: 3.3.1
> Reporter: gabrywu
> Priority: Trivial
>
> As for now, we have 3 built-in UDFs related to input files and blocks. So
> can we provide a new UDF to return current record position of a file or
> block? Sometimes, it's useful and we can consider this position (called ROWID
> in oracle) as a physical primary key.
>
> |input_file_block_length()|Returns the length of the block being read, or -1
> if not available.|
> |input_file_block_start()|Returns the start offset of the block being read,
> or -1 if not available.|
> |input_file_name()|Returns the name of the file being read, or empty string
> if not available.|
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